body {
    background:    white;
}
body > .Head {
    height:    10%;
}
body > .Body {
    height:      80%;
    overflow:    auto;
    padding:     0  0.5em;
}
body > .Foot {
    height:        10%;
    list-style:    none;
}


body > .Head .Icon:hover,
body > .Foot > li:hover   {
    opacity:       0.7;
    background:    transparent;
}